Adobe’s Photoshop Touch is flexible enough that you can really get your hands dirty with some desktop-level photo manipulation. But what the app is really meant to do is be a quick way for you to fix or edit your photos and then share them with your friends via social networks or email.
To this end, there are some incredibly powerful tools which take just a few taps to apply. One of the coolest is called Add Fade, and it makes blending two images together as simple as dragging a slider: Photoshop takes care of all the masking and blending for you. So go grab your iPad, fire up Photoshop and follow along.